Trolley base



Dec. 26, 1922. 1,439,740

E. S. LINCOLN ET AL.

TRCLLEY BASE. FILED MAR. 25. 1922, 2 SHEETS'SHEET 1 I gmdfog I 9mm! 5M2 0 1 M F wmr I Dec. 26, 1922. 1,439,740

E. S. LINCOLN ET AL.

TROLLEY BAsEs. V FILED MAR-25.1927. 2 SHEETS-SHEET 2 I HUN) lax WM U I (Tum-m Patented en. 26, 1922. i

OHIO nnnss coMrAnY, or vmnsrrnmi, onr n conronnrronfor NEW JERSEY.

TBOLLEY BASE;

tain new and useful. Improvements in Trolley Bases, of which the following is aspecification. v g p Our invention relatesto a trolley base for use on vehicles employinga trolley pole to the upper end of which is attached a current collector to engage. with an overhead trolley conductor. v

The object of ourinvention is to produce a mechanism whichwill permit of free rotation of the pole supporting portion. about a vertical axis and to maintain tension upon the pole supporting member in order to urge the pole in an upward direction and so that the trolley collector at theupper end of the pole will bear against the trolley wire with reasonably uniform tension throughout a practical working range as measuredfby the ordinary variation 1n the he ght ofthe trol ley wire. Other objects will appear from the description of the construction and out. of the invention. hereinafter more fully set.

forth. l l

The invention resides in the construction combination and relation ofthe various 2 parts hereinafter described and shown the drawing. Y p

In the drawings accompanying this specification- 1 1 Fig. 1 shows a side view of my invention in elevation held in a locked'position against operation.v 7 I Fig. 2 shows a topplan view of Fig. 1.

Fig. 8 shows a front or end view of Fig. 2 in partial section. I a

Fig. 4. shows a side view of my invention in elevation in operative position.

Fig. 5 is a cross sectional view on the line 55 of Fig. 41. n v d Fig. 6 is a view in partial section on the line 6-6 of Fig. 2.

In the preferred form of our invention 7 Application filed March 25, 1922. SerialNoL 546,606.

we employa base having a broad platform l WlllCll 1S mountedon the roof-of the vehicle byymeans of bolts. passing through the recesses 2 and mounted on the platform 1. is a pedestal 3 upon which the moving parts ofthe invention are mounted.

The moving-parts of our invention comprise an inverted cup. shaped member posed between themembers 3 and 4: is a series of roller bearings; 5' mounted in a cage forming a unitv as is usually the manner and the common waym which roller,

AEENT i tries.

ELLIS s. LINCOLN Ann nuns-"r Llinsson, or nnnsrrnnn. onrdnssrenons T0 were which is placed over the pedestal 3. Inter? e bearingsare mounted. Projecting from the membertare twolugs 6-6 provided with alined recesses through which pass, a pin 7 andheld in place by means ofa spring cotterS-S. :Als'o mounted on the member At are two lugs 9.9 provided :with alined recesses through which pass a pin 10, the

pin being held in place ,by means of the spring cotter 1l11. Pivotally mounted on n pro ecting stud 12 secured to the member 41:, is a movable latch '13 held in place bythe spring-cotterll. .Pivotallyi mounte'd von the pin 10. is a yokeshaped or forked arm 15 provided with an;elongated mem v ber- 16 which divides intothe arms 17 1.7

and whicharmsare providedwith alined recesses formountmgupon the pin 10. V

Each of the forkmembers 17 are provided a with extension members18--l8 one of which is. adapted to be engaged by the .pivotally mountedlatch 13 whereby the forked arm .15, together with the trolley pole, may be heldin a lowered orinoperative position as shown in Fig.1. At the outer'end of the arm 15 and intermediate its ends are clamping members 1919 .held in place by means of the studs. and nuts 20 20. The members l-9 are provided with asemi-circular groove 21 which has a counter pert groove.

22 in the member 16 all toreceive the lower end ofthe trolley" pole 23 which is clamped in position bv means of the studs and nuts 20- 2o.

arm 15. is provided a slidable. member 24 At' the outer end of the forked having a. stud 25, secured thereto which passes through a recess in the lug 26 which able member 24 is provided with inwardly projecting flanges 28-28 which engage with the flanges 29-429 on the member 16 thereby retaining the member 24 in position on the arm 16, but permitting it to move longitudinal thereof andwhich movement is controlled by the nut 27 on the stud 25.

Interposed between the pin 7 and the movable member 24 is a plurality of springs 30 normally under tension tending to constantly urge the member 15 to pivot upwardly about the pin 10. Each spring is attached to the movable member 24 by means of the eye 31 engaging the hook member 32 and to the pin 7 by means of the eye 33 engaging therewith. The tension in the spring can be adjusted by means of the nut 27 operating on the stud 25. r

Projecting on the member 4 in the same direction as the arm 15 and below the same are two studs34-34 each provided with a spring 35 and having interposed between one end of the spring and the member 4 a movable plate 36 provided with recesses through which the studs 34 pass. The springs are held in position upon the studs 3434 by means of the nuts 37-37 and which in turn are prevented from rotating after being properly positioned to tension the springs 3535, by means of the pins 3838. Y

The function of the parts 34 to 38, inclusive is to, act as a buffer in case the trolley collector at the upper end of the pole 23 should leave the wire, as inthat case the pole would be rapidly raised under tension of the springs 30, but after rising to a predetermined height the lugs 181S would engage with the plate 36 and be arrested in its upward rise and a cushioning effect would be afforded by the springs 35 -35. The arrangement of the parts as shown and especially having the springs 30, fork member 15 and buiiing springs arranged in the same longitudinal direction ,and directly above and below each other gives a very compact arrangement which is especially adapted to the mounting of two, bases'si'de by side upon a vehicle intended to operate by means of two overhead conductors as is the case with trackless trolley operation, as the arrangement shown permits the bases to swivel about their vertical axes without interfering with each other as the lateral space taken up by the moving parts can be made very limited.

By tiositioning the fulcrum points 7 and lllas shown, namely, the one above theother and out of the same vertical plane and with the proper relative spacing, we are able to invention, we

anti-friction members therebetween, an arm pivotally mounted on the turret. to receive a trolley pole and pivot in a vertical plane, means on the a'rm'to" engage and clamp the trolley pole to the arm, means on the turret to receive spring means, adjustable means on the arm to'receive'spring means, spring means interposed between the last two means operating to force the arm upward about its pivotal point on the turret, pivotal stop means on the turret to be moved at will,

stop means on the arm to be-engaged by the stop means on the turret to hold the arm in a lowered or inoperative position and resilient stop nleanssecured to the turret to he engaged by the stop means on the arm to yieldingly arrest the upward movement of the arm beyond a predetermined point, the spring means, arm and resilient stop means all extending in the samedirection from the vertical axis of the turret.

2. trolley base comprising a base member for attachment to a vehicle and provided with a pedestal, a turret rotatably mounted on the pedestal and provided with anti-friction members therebetween, an arm pivotally mounted on the turret to receive a trolley pole and pivot in a vertical plane, means on the arm to engage and cl amp the trolley pole to the arm, means on theturret to receive spring means, adjustable means on the arm to receive spring means, spring means interposed between the last two means operating to force the arm upward about its pivotal point on the turret, pivotal stop means on the turret to be moved at will, stop means on the arm to be engaged by the stop means on the turret to hold the arm in a lowered'or inoperativeposition and resilient stop means secured to the turret to be engaged by the stop means on the arm to yieldingly arrest the upward movement of the arm beyond a predetern'iined point.

3. A trolley base comprising a base member for attachment to a vehicle and provided with a pedestal, a turret rotatably mounted on the pedestal and provided with anti-friction members therehetweeu. anarui pivotally mounted on the turret to iweiic a trolley pole and pivot in a rertical plane, means on the arm to engage and clamp the trolley pole to the arm, means on the turret toreceive spring means, adjustable means on the arm to receive spring means, spring means interposed between the last two means operating to force'the arm upward about its pivotal point on the turret, pivotal stop means on the turret to be moved'atwill, stop means on the arm to be engaged by the stop means on the turret to hold the arm in a lowered or inoperative position, the spring means and armall extending in the same direction from the vertical axis of the turret.

4:. A trolley base comprising a base member for attachment to a vehicle and provided with a pedestal, a turret rotatably mounted on the pedestal and provided with. antifriction members therebetween, an arm pivotally mounted on the turret to receive a trolley pole and pivot in a vertical plane, means on the arm to engage and clamp the trolley pole to the arm, means on the turret to receive spring means, adjustable means on the arm to receive spring means, spring means interposed between the last two means operating to force the arm upward about its pivotal point on the turret, pivotal stop means on the turret to be moved at will, stop means on the arm to be engaged by the stop means on the turret to hold the armin a lowered or inoperative position.

5. A trolley base comprising a base member for attachment to a vehicle and provided with a pedestal, a turret rotatably mounted on the pedestal and provided with anti-friction members therebetween, an arm pivotally mounted on. the turret to receive a trolley pole and pivot in a vertical plane, means on the arm to engage and clamp the trolley pole to the arm, means on the turret to receive spring means, adjustable means on the arm to receive, spring means, spring means interposed between the last two means operating to force the arm upward about its pivotal point on the turret, stop means on the arm and resilient stop means secured to the turret to be engaged by the stop means on the arm to yieldingly arrest the upward movement of the arm beyond a predetermined point, the spring means and arm and resilient stop means all extending in the same direction from the vertical axis of the turrent.

6. A. trolley base comprising a base member for attachment to a vehicle and provided with a pedestal, a turret rotatably mounted on the pedestal and provided with anti-friction members therebetween, an arm pivotally mounted on the turret to receive a trolley pole and pivot in a vertical plane, means on the arm to engage and clamp the trolley pole to the arm, means on the turret to receive spring means. adjustable means on the arm to receive spri means, spring means interposed between the last two means operating to force the arm upward about its pivotal point on the turret. stop means on the arm and resilient stop means secured to the turret to be engaged by the stop means on the arm to yieldingly arrest the upward move-- mento-l the arm beyond a predetermined point.'

7. A; trolley base comprising in combination a base member to be secured to a vehicle and provided with a pedestal, a turret rotatably mounted on the pedestal, an arm pivotally mounted on the turret to swing in a vertical plane, a spring interposed between the turret and arm, means on the turret to receive-one end of the spring, adjustable means slidably mounted on the armto receive the other end of the spring, means on the arm to maintain the adjustable means thereon, means on the adjustable means cooperating with means on the arm to control the movement of the adjustable members and vary. the tension of the spring.

8. A trolley base comprising a base member provided with a pedestal, a turret mounted thereon to rotate about the vertical axis of the pedestal, an arm pivoted at one end to the turret to operate in a vertical plane, a spring secured to the, turret and to adjust-able means on the arm, the adjustable means comprising a slidable member provided with inwardly projecting flanges cooperating with outwardly projecting flanges on the arm to retain the adjustable member on the arm and means on the adjustable member cooperating with means on the arm to move the adjustable member thereon and vary the tension of the spring.

9. A trolley base comprising in combination a base member to be secured to a vehicle and provided with a pedestal, a rotatable turret mounted on the pedestal, an arm pivotally mounted on the turret to receive a trolley pole, spring means secured to the turret at a point in a-plane above the pivotal mounting of the arm operating to rotate the arm upwardly about its pivotal point, and means to yieldingly arrest the upward movement of the arm at a predetermined point comprising a resilient means positioned below the arm and secured to the turret, a member arranged to engage the resilient means in movable relation therewith and means on the arm to engage the member when the arm has moved about its pivotal point a predetermined amount.

10. A trolley base provided with a base member forattachment to a vehicle, a rotatable member mounted thereon and a spring operated arm pivoted to the rotatable member to move in a vertical plane and having in combination therewith means to arrest the movement of the arm in one direction comprising a plurality of studs projecting from the rotatable member, a spring mounted on each stud, a member slidably mounted on the studs and engaging the springs, means on the stud to retain the springs in place and adjust the tension thereof and means on the arm to engage the shdably mounted member on the studs. I

11. A trolley base comprising in oombi-- nation a base member, a turret rotatably mounted thereon, an arm pivotally mounted on theturret to move vertically, a sprin operating to move the arm about its piVOtifi point, stop means on the turret to be moved at willto hold the arm against movement 10 resilient means on the turret to arrest movement of the arm and common means on the arm to engage the stop means and the resilient means for the purpose described.

In testimony whereof We afiix our sigma 15 tures.

V ELLIS S. LINCOLN.

ERNST LARSSON. 

